*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
header{
    background: #65bce9;
    margin-bottom: 60px;
}
nav{
}
.container{
    width: 870px;
    margin: auto;
}
.container::after{
    content: "";
    display: table;
    clear: both;
}
nav{
    padding-top: 11px;
    padding-bottom: 11px;
}
.nav-right img{
    display: none;
}
nav .container{
    padding-bottom: 30px;
}
nav .nav-left,
nav .nav-center,
nav .nav-right{
    float: left;
    width: 33.333333%;
}
.nav-left{
    height: 56px;
}
.nav-center{
    text-align: center;
}
.nav-right{
    text-align: right;
}
.nav-right a{
    color: white;
    text-decoration: none;
}
.banner{
    color: #fff;
}
.banner p{
    font-weight: bold;
}
.banner h1{
    font-weight: 300;
    font-size: 36px;
    margin-bottom: 25px;
}
.banner a{
    color: white;
    text-decoration: none;
    background: #2996cc;
    padding: 15px 53px;
}
.banner a:hover{
    background: hotpink;
}
.banner .col{
    width: 50%;
    float: left;
}
.banner img{
    width: 100%;
    display:block;
}
.banner-right img{
    float: right;
}
main{
    margin-bottom: 60px;
}
main .col{
    width: 25%;
    float: left;
    text-align: center;
    padding-left: 10px;
    padding-right: 10px;
}
main .col h3{
    font-size: 14px;
    padding-bottom: 10px;
    color: #424e5f;
}
main .col p{
    color: #667083;
}
main h1 {
    margin-top: 60px;
    border: 1px solid #e0e0e0;
}
.footer .ap h1,
.footer .ap p{
    text-align: center;
    margin-bottom: 30px;
}
.footer p{
    color: #798392;
}
.footer .tp{
    text-align: center;
}
.db{
    width: 100%;
    height: 150px;
    background: #1b2126;
    margin-top: 50px;
}
.footer .container p{
    color: #4a5359;
    float: left;
    padding: 65px 198px;
}
.footer .container{
    width: 100%;
    height: 152px;
    background: #1b2126;;
}
@media (max-width: 600px){
    .container{
        width: 80%;
    }
    .nav-right span{
        display: none;
    }
    .nav-right img{
        display: inline-block;
        margin-right: 30px;
    }
    .banner .col{
        width: 100%;
        text-align: center;
    }
    .banner img{
        margin-top: 30px;
        width: 80%;
    }
    main .container .col{
        text-align: center;
        width: 100%;
    }
    .footer .container p{
        color: #4a5359;
        float: left;
        padding: 63px 30px;
    }
}